Bolt gutter



Model.)

Wfibzesse@ A. R. DUFP.

BOLT GUTTER.

Patented'DecQ, 1882.

' l UNITED STATES PATENT OFFICE.

ALEXANDER R. DUFF, OF ONEIDA, NEW YORK, ASSIGNOR OF TWO-THIRDS TO PETER LEWIS, OF SAME PLAGE, AND JOHN G HOFFMAN, OF NEW YORK, N. Y.

BOLT-CUTTER.

SPECIFICATION forming part of Letters Patent No. 269,271, dated December 19, 1882.

Application filed August 21, 1882. (No model.) l

To all whom it may concern Be itknown that I, ALEXANDER R. DUEE, of Oneida, in the cou-nty of Madison and State of New York, haveinventeda certainnewand useful Improvenientin Bolt-Gutters, of which the following is a specication.

This improvement consists in the combination, in a bolt-cutter, of an open frame, the two sides of which are rigidly connected to- 1o gether, a stationary cutter secured therein, a sliding cutter extending across the frame, and having its opposite edges fitting in guides in the sides ot' the frame, two levers pivoted together and to the stock of the sliding cutter,

and links connecting said levers with the two sides of the frame, all as particularly herein- `after described.

In the accompanying drawings, Figure l is a side view of a bolt-cutter embodying my imzo provement, and Fig. 2 is a longitudinal section of the same.

Similar letters of reference designate corresponding parts in both figures.

A designates the frame of the boltcutter,

lwhich may be of any'suitable metal. This frame has a large opening, and its two sides are rigidly connected together. The two sides are here shown as formed in one casting, and the frame is of U shape.

B designates a cutter fitted in guides a in the frame A,sothatitmay be adjusted lengthwise thereof. Ascrew, C, workingin a tapped or internally-screw-threaded hole in the frame A, impinges against the back of the cutter B,

and serves to adjust it outwardly and to retain it in position when in operation. Ascrew, D, working in a tapped'or internally-screwthreaded hole in the frame A and impinging v against one edge of the cutter B, serves to se- 4ol cure it in any position to which it may be ad-Y justed.

B' designates a movable cutter, which is fitted into the guides, and is adapted to move lengthwise thereof -when in operation.

E designates two levers, which are severally pivoted to a pair of links, F, which are pivotally connected to the frame A. These levers are pivoted to the stock or shank of the cutter B'. By swinging the frce ends of these levers away from each other the cutter B will 5o be drawn away from the cutter B, and by swinging the said ends of the levers toward each other the cutter B will be forced powerfully toward the cutter B.

It will be observed that the frame A is made in one piece, with a rounded outer portion and two parallel sides, and that the links F are pivoted toits ends. Across-piece, G, connecting the sides of the frame near the ends, may be used to stay the sides and prevent them 6o from being spread apart by the action of the levers. One lever, connected by a link or pair of links to the frame A, could be used alone, if, in lieu of its fellow, a rigid extension of the opposite end ofthe frame is used or some other supportemployed. Two levers will, however, be preferable.

Obviously the knives or cutters can be easily taken out of the frame and sharpened.

Vhat l claim as my invention, and to secure by Letters Patent, 'isl. In a bolt-cutter, the combination ot' an open frame, A, having its two sides rigidly connected together, a stationary cutter, B, secured therein, a movable cutter, B', extend- 75 ing across the frame, and having its opposite edges fitting in guides in the sides of the frame, two levers, E, pivoted together and to the stock of the movable cutter, and links F, connecting said levers with the two sides of 8o the frame, substantially as specied.

2. The combination of the frame A, the cutter B, fitted to guides in the frame, the screws C D, the cutter B', the levers E, and the links F, pivotally connected to the levers and frame, 8 5 substantially as specied.

ALEXANDER R. DUFF.

desire 7o Witnesses:

'JOHN R. RowLAND, T. H. J UEDEN. 

